Fly-wheel.



H. L. BOOK. FLY WHEEL.

APPLICATION FILED APR.10, 1911.

LO93,2460 Patented Apr. 14, 1914.

WZTNESEEEI UNITED sTA'rus PATENT carrot,

HENRY L. BOOK, OF TOLEDO, OHIO, ASSIGNOE TO WILLIAM E. BOOK, OE TOLEDO, OHIO.

I'LY 'WHIEEI oeaeae.

Specification of Letters Yatent.

Application filed April 10, 1911. Serial No. 620,215.

To all whom, it ma concern:

Be it known at I, HENRY L. Boon, a

citizen of the UnitedaStates, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Fly-Wheel or Similar Article; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings and to the figures of reference marked thereon, which form a part of this specification.

My invention relates particularly to the construction of fly-wheels, but is not restricted to such use, as it may be used for any purpose for which it may be adapted or appropriate.

The object of my invention is the provision of an improved flywheel for use in engines or the like, which is simple and inexpensive in its construction and manufacture, and combines a maximum of strength and durability with a minimum of material.

A further object of my invention is the provision, ina stamped sheet metal wheel of this character, of a friction clutch of simple and elficient construction. i

j The invention is fully described in the fol lowing specification, and while in its broader aspect, it is capable of embodiment in numer= ous forms a preferred embodiment thereof is illustrated in the accompanying drawing, which is a central sectional view of a flywheel comprising the invention and an associated portion of an engine.

Referrin to the drawings,- 1 designates the crank-c amber of an engine, 2 ahollow crank-shaft having the longitudinally shiftable end portion 3, and 4 the fly-wheel comprising my present invention, the end of the shaft adjacent to the wheel being mounted-in a suitable bearing 5. a

The fly-wheel 4 comprises in main the two opposing web or disk members 6 and 7, and the heavy rim portion 8, which is secured to the outer peripheral edges of said members in the inner edges of the rim8 against the shoulders formed-thereby, the bolts themselves preferably seating in registering reces'ses 11 in, the inner side of the rim, as indicated, to prevent a relative turning oi the web and rim portions; 1

The web members 6 and 7 are preferably dished outwardl as shown,and the memher 6 has a cylin rical portion 12 drawn outwa'rd from itscenter to provide a stub shaft or trunn on forjournaling in the associated end of the bearing 5. The'end of the truninch 12 and also that of the crank-shaft 2, which ournals in the bearing 5, are closed except for registering axial openings therethrough, for the purpose hereinafter described and are rigidly secured together as by rivets 13, electric-welding, or in any other suitable manner. The web member 7 has its central portion drawn inwardly to provide the elongated cylindrical hub flange 14 for bearing upon the parts hereinafter described.

The inner end of the shaft section 3 projects within the fiy-wheel 4 through the hub flange 1d of the member 7 and is encom-.

passed by a sleeve 15 in which it may have free rotary and longitudinal movements.

The sleeve 15 has its inner end projected beyond the inner end of the hub flan e 14 and formed with a radial annular ange 15 which projects beyond said hub flange, as indicated.

The fly wheel is shown in the present instance as being inclosed by an outer case 16 and an inner case 17, which are preferably of sheet metal and project outwardly from the engine casing. The outer end of the casing 17, or that opposed to the engine casing, is of disk form with its central portion drawn inwardly to provide a broadened bearing 18 for snugly receiving the sleeve 15.

This bearingyportion 18 is of greater length than the hu flange 14 of the wheel disk 7 to enable it to project entirely through the flange opening and to abut at its inner end against the flange 15' of the sleeve 15. The outer end of the sleeve 15 projects beyond the associated end of the bearing 18 and a L nut 19' threads thereon and cooperates with the sleeve flange 15 to prevent relative endwise movements o said sleeve and the bear- 1 *or tween the bearing 18 and hub flange 14: is by bolts 9. These bolts draw the edges of the web members within marginal incuts 10 efiicieucy in operation, the space hepreferably filled with three rings or sleeves 2U, 21 and-22, which encircle each other in succession, asshown The inner ring 20 abuts at its inner end against the sleeve than c 15; and has its outer end formed with a nu ial flange 20" which projects outward 1n lateral abutment with the casin end 17.

., The outer ring 22 is in two dup icate sec- Patented Apr. it, ieii.

tions, which abut at their inner ends and have their outer ends radially flanged, as at 22' to cooperate to form an annular channel bearin for the hub-flange 14. An annulus or waslier23 is preferably disposed between the flanges of the ring 22 and the respective flanges 15 and 20. For the purpose of oiling the parts encircling the shaft section 3 a tube .24 is inserted into a socket in the inner end of said shaft section, being secured therein by a pin 25, and has its outer or end slidingly projected through the registering axial openings in the fly-wheel trunnion 12 and attached end. of the crank shaft 2, a bushing 26 being preferably mounted in said openings to provide a bearing therefor.

The oil which is intended to circulate through the hollow shaft 2, flows from the end thereof through the tube 24, and thence through radial passages 26 in the inner endortion of said tube, the shaft 3, sleeve 15, hearing 18 and sleeve 20, and between the coacting surfaces of the several bearing parts .to thoroughly lubricate the same.

.The inner end of the shaft section. 3 which terminates within the wheel 4, is flanged, as at 3 and to this is rigidly secured the movable clutch member 27.

This clutch member is preferably stamped from sheet metal and is shown in the pres ent instance as extending radially a short distance from the shaft, then flaring outwardly toward. the web member 7 of the fly wheel to adjacent the outer edge thereof where it extends inwardly over said flaring portion to provide the cylindrical drum shaped part 27, with the inner edge thereof terminating in the outwardly projecting radial flange 27 The fixed member of the clutch preferably comprises 'an annulus 28 of-sheet metal, which fits snugly within the rim portion 8 of the wheel 4 with its outer edge in abutment with the wheel member7 and its inner edge terminating without the flange .27 of the clutch member 27 in opposition thereto in an inwardly projecting annular flange 28. A plurality of friction rings 29 are interposed between the flanges 27 and 28 of the respectiveinembers to cooperate theredrive the shaft section 3, as is apparent. Alternate ones of the rings 29 are fixed to the wheel for rotation; therewith by having peripheral notches in which the shanks of the wheel bolts 9 seat.

The clutch members and friction rings are normally .held in clutch engagement by the action on the shaft section 3 of a coiled compression spring 30. This spring encirportion fitting within a socket 31 in the in ner end of the shaft section 3 in thrust contact with the inner end thereof and its other cles the portions 12 and 37 I pending application 1 filed under even date herewith and patented on June 3, 1913, No. 1,063,323, forms a simwith to cause the fly wheel to frictionally i terconnecting the crank-shaft and fly-wheel,

- tease end bearing against "a thrust bearing 32. To release the clutch the shaft section 3 is moved inwardly against the tension of the spring 30 by any suitable mechanism not shown, as is common in connection with drive-shaft clutches.

It is apparent that practically all of the parts of my improved wheel and its clutch, excepting the wheel rim, are stamped or drawn from sheet metal, and are in such form as to provide an exceedingly strong, durable, cheap and light construction, the bulk of the weight being' located at the rim portion of the wheel where needed. I

The crank-shaft 2 is shown in the present instance as being of hollow construction for the. circulation of oil therethrough and as being made up of a plurality of stamped sheet metal sections. In the form of crankshaft shown in the'present case the crankarms thereof, which may either be of the single or double arm type, comprise the outer and inner members 35 and 36, re-

spectively, which are preferably stamped or drawn from sheet metal. These members are shown as being male and female to facilitate a securing of the same together, one within the other, and the outer member of at least the arm thereof which is disposed adjacent to the fly wheel 4 is provided at its shaft end with an outwardly drawn cylindrical cup shaped portion 37. The said shaft portion 37 is intended to abut at its outer end, or that which is opposite. to the arm member from which it projects, against the outer end of the cylindrically drawn portion 12 of the wheel. disk 6, being substantially'the same shape as said wheel portion, and is rigidly secured thereto by rivets 13 or in any other suitable manner as hereinbefore stated. A sleeve 38 closely encirto coiiperate therewith to form the part of the crankshaft disposed intermediate the fly-wheel and adjoinlng crank-arm, and this sleeve is intended. to journal in the bearing 5, as I shown. It is evident that this feature of my invention, which is divided out of a cople, strong, durable and rigid means of inand that in case of an extension of the 1 crank-shaftfrom both sides of the wheel the shaft can be attached in the same man+ ner to both disks of the wheel. The wristsaid copending application. cles the oil circulating tube 24 with an end It is obvious that while I haveshown and described'what I believe to be a preferred form of my invention, the form and arrangement of the parts may, if desired, be

Serial No. 620,214,"

changed within a wide range, and I therefore wish it understood that the invention is 'ters Patent, is,

1. An article of the class described, having a rim portion and laterally-spaced disk-like web members of sheet-metal secured at their outer edges to the rim portion, one of said members having an integral outwardly projecting central portion forming atrunnion and the other having an integral inwardly projecting central portion forming a broadened hub bearing surface.

2. An article of the class described, having a rim portion and laterally-spaced outwardly dished disk-like web members of sheet-metal,

one of said members having an integral out.- wardly projecting central part of cylindrical form with its end partly closed to provide a trunnion and the other of said members having an integral inwardly projecting central part providing a broadened hub bearing surface.-

3. In combination, a shaft, a wheel having a rim portion and sheet-metal web members,

' one of which has an integral outwardly pro- 1 members, one of which has an integral injecting central part forming a trunnion and the other having an integral laterally projectin central portion providing a broadened ub opening for the shaft to project through, and bearing members disposed'between said shaft and said laterally turned portion of the web member.

4. In combination, a shaft, a wheel comprising a rim portion and sheet-metal web wardly projecting central portion providing a broadened hub opening-for the shaft to project through, a casing part having a cy lindrical bearing portion projecting within the hub opening of said web member, and bearing members cooperating with said shaft, cylindrical casing part and inwardly-projecting portion of the web member to carry the wheel.

5. In combination, a shaft, a wheel having a rim portion and sheet-metal web members, one of which has an integral outwardly projecting central portion forming a trunnion and the other having an integral inwardly projecting central portion forming a broadened hub opening for the shaft, a casing part inclosing a part at least of the wheel and having a cylindrical bearing portion projecting within said inwardly projecting portion of one .of said web members, and members cooperatingwith said shaft and cylindrical casing part to form a bearing for the inwardly projecting portion of the web member.

6. In combination, a shaft, a wheel comprising a rim portion and members, one of which has an integral inwardly projecting central portion forming an elongated hub opening for the shaft, a

casing part for the wheel having a cylmdrical portion projecting within said hub opening, and means cooperating with said shaft and cylindrical casing part to form a bearing for the inwardly projecting portion of said web member and serving to bind the cylindrical casing part and inwardlyprojecting portion of the web member against relative longitudinal movements.

7 In combination, a shaft, a wheel having a rim portion and sheet-metal web members, one of which has an integral inwardly projecting central portion forming an elongated hub opening, a casing part having a cylindrical portion projecting within said hub opening intermediate said shaft and the inwardly projecting portion of said member, means intermediate the inwardly projecting portion of said member and said cylindrical casing part for forming a bearing therebetween, and means intermediate the shaft and said cylindrical casing part to form a bearing therebetween and serving to bind the cylindrical casing part, the inwardly projecting portion of said member and the hearing means together. j

8. A sheet metal wheel having a sheet metal web and an integral sheet metal bearing shaft, a sheet metal .rotor for rotating the wheel having a sheet metal bearing shaft, the shafts having inturned abutting flanges, and means for locking the flanges together.

9; In combination with a bearing, a wheel having a sheet metal web portion, and a sheet metal shaft, said web portion and shaft each having parts extending within said bearing and rigidly connected together therein. In witness whereof, I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

C. W. OWEN, C. H. BILLS.

sheet-metal web 

